Bolbbalgan4 have revealed teaser images for 'Youth Album 1: Flower Energy'. 

The duo is returning with an album in time for spring, and it looks like their upcoming album will have an ethereal, light and airy concept. The title track of 'Youth Album' has been revealed as "Only Me, Spring", and singer Ahn Ji Young participated in writing and composing 4 tracks on the album.

Bolbbalgan4's album drops on April 2 KST.